body { font-family: 'Inter', sans-serif; background-color: #FDFBF8; color: #333D4B; }
        .font-serif { font-family: 'Lora', serif; }
        .nav-link { position: relative; transition: color 0.3s ease; padding: 8px 12px; border-radius: 6px; }
        .nav-link:hover { color: #1A202C; background-color: #F7FAFC; }
        .nav-link.active { color: #2D867B; font-weight: 600; }
        .nav-link::after { content: ''; position: absolute; width: 0; height: 2px; bottom: -4px; left: 50%; background-color: #38A89D; transition: all 0.3s ease; transform: translateX(-50%); }
        .nav-link:hover::after, .nav-link.active::after { width: 60%; }
        .dropdown { position: relative; }
        .dropdown-menu { position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(10px); opacity: 0; visibility: hidden; transition: opacity 0.3s ease, transform 0.3s ease; background-color: white; border-radius: 0.5rem; box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); padding: 0.5rem; z-index: 50; min-width: 120px; }
        .dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
        .dropdown-item { display: flex; align-items: center; gap: 0.5rem; padding: 0.5rem 1rem; border-radius: 0.25rem; transition: background-color 0.2s ease, color 0.2s ease; font-family: 'Inter', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji', sans-serif; }
        .dropdown-item:hover { background-color: #f1f5f9; color: #1e293b; }
        .btn-primary { background-color: #38A89D; color: white; transition: all 0.3s ease; box-shadow: 0 4px 6px rgba(56, 168, 157, 0.2); }
        .btn-primary:hover { background-color: #2D867B; transform: translateY(-2px); box-shadow: 0 7px 10px rgba(45, 134, 123, 0.2); }
        .btn-secondary { background-color: #FFFFFF; color: #4A5568; border: 1px solid #E2E8F0; transition: all 0.3s ease; }
        .btn-secondary.active, .btn-secondary:hover { background-color: #38A89D; color: white; border-color: #38A89D; }
        .card { background-color: #FFFFFF; border-radius: 0.75rem; box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05); transition: transform 0.3s, box-shadow 0.3s; border-top: 4px solid #38A89D; }
        .card:hover { transform: translateY(-8px); box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1); }
        .accordion-content { max-height: 0; overflow: hidden; opacity: 0; transition: max-height 0.4s ease-in-out, opacity 0.4s ease-in-out; }
        .accordion-button.is-open + .accordion-content { opacity: 1; }
        .accordion-button svg { transition: transform 0.3s ease; }
        .accordion-button.is-open svg { transform: rotate(180deg); }
        .chart-container { position: relative; width: 100%; max-width: 800px; margin: auto; height: 400px; max-height: 50vh; }
        #hotspot-map { height: 500px; border-radius: 0.75rem; box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05); }
        .animate-on-scroll { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
        .animate-on-scroll.is-visible { opacity: 1; transform: translateY(0); }
        html { scroll-behavior: smooth; }
        #mobile-menu { position: absolute; top: 100%; left: 0; right: 0; background-color: white; box-shadow: 0 8px 16px rgba(0,0,0,0.1); max-height: 0; overflow: hidden; transition: max-height 0.4s ease-in-out; border-bottom-left-radius: 0.75rem; border-bottom-right-radius: 0.75rem; }
        #mobile-menu.is-open { max-height: 100vh; border-top: 1px solid #e5e7eb; }
        #mobile-menu .nav-link { display: block; padding: 1rem 1.5rem; font-size: 1rem; font-weight: 500; border-bottom: 1px solid #f3f4f6; }
        .section-separator { color: #FDFBF8; }
        .custom-scrollbar::-webkit-scrollbar { width: 8px; }
        .custom-scrollbar::-webkit-scrollbar-track { background: #f1f5f9; border-radius: 10px; }
        .custom-scrollbar::-webkit-scrollbar-thumb { background-color: #38A89D; border-radius: 10px; border: 2px solid #f1f5f9; }
        .custom-scrollbar::-webkit-scrollbar-thumb:hover { background-color: #2D867B; }
        @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
        @keyframes fadeOut { from { opacity: 1; } to { opacity: 0; } }
        @keyframes scaleIn { from { transform: scale(0.95); } to { transform: scale(1); } }
        @keyframes scaleOut { from { transform: scale(1); } to { transform: scale(0.95); } }
        .modal-content-enter { animation: fadeIn 0.3s ease-out forwards, scaleIn 0.3s ease-out forwards; }
        .modal-content-leave { animation: fadeOut 0.3s ease-in forwards, scaleOut 0.3s ease-in forwards; }
        #chat-window { height: 350px; overflow-y: auto; }
        .chat-bubble { max-width: 80%; padding: 10px 15px; border-radius: 15px; margin-bottom: 10px; line-height: 1.5; }
        .user-bubble { background-color: #38A89D; color: white; border-bottom-right-radius: 5px; align-self: flex-end; margin-left: auto; }
        .ai-bubble { background-color: #4A5568; color: #E2E8F0; border-bottom-left-radius: 5px; align-self: flex-start; }
        .typing-indicator span { height: 8px; width: 8px; background-color: #90CDF4; display: inline-block; border-radius: 50%; animation: bounce 1.4s infinite ease-in-out both; }
        .typing-indicator span:nth-child(1) { animation-delay: -0.32s; }
        .typing-indicator span:nth-child(2) { animation-delay: -0.16s; }
        @keyframes bounce { 0%, 80%, 100% { transform: scale(0); } 40% { transform: scale(1.0); } }
        .history-card { background-color: #4A5568; transition: background-color 0.3s; }
        .history-card:hover { background-color: #5a687c; }
        #checklist-progress-bar-container { background-color: #e5e7eb; border-radius: 9999px; overflow: hidden; height: 12px; margin-bottom: 1.5rem; }
        #checklist-progress-bar { background-color: #38A89D; height: 100%; width: 0%; transition: width 0.5s ease-in-out; }
        .checklist-item { background-color: #f8fafc; border: 1px solid #e5e7eb; border-radius: 0.5rem; transition: background-color 0.3s; overflow: hidden; }
        .checklist-item.is-checked { background-color: #f1f5f9; }
        .checklist-item-header { display: flex; align-items: center; justify-content: space-between; width: 100%; padding: 1rem; }
        .checklist-item-header .item-text { transition: color 0.3s, text-decoration 0.3s; }
        .checklist-item.is-checked .item-text { color: #6b7280; text-decoration: line-through; }
        .checklist-item-actions { display: flex; align-items: center; gap: 0.75rem; }
        .checklist-action-btn { background: none; border: none; padding: 0.25rem; border-radius: 9999px; cursor: pointer; color: #6b7280; transition: color 0.2s, background-color 0.2s; }
        .checklist-action-btn:hover { color: #1f2937; background-color: #e5e7eb; }
        .checklist-links-content { max-height: 0; overflow: hidden; transition: max-height 0.4s ease-out, padding 0.4s ease-out, opacity 0.4s ease-out; padding: 0 1rem 0 3.25rem; opacity: 0; }
        .checklist-item.is-open .checklist-links-content { padding: 0 1rem 1rem 3.25rem; opacity: 1; }
        .checklist-item-checkbox { appearance: none; width: 1.25rem; height: 1.25rem; border: 2px solid #9ca3af; border-radius: 0.25rem; margin-right: 0.75rem; flex-shrink: 0; transition: background-color 0.2s, border-color 0.2s; position: relative; cursor: pointer; }
        .checklist-item-checkbox:checked { background-color: #38A89D; border-color: #38A89D; }
        .checklist-item-checkbox:checked::after { content: '✔'; position: absolute; color: white; top: 50%; left: 50%; transform: translate(-50%, -50%); font-size: 0.8rem; }
        .lang-switcher-btn { display: flex; align-items: center; gap: 0.5rem; padding: 0.5rem 0.75rem; border-radius: 0.375rem; transition: background-color 0.2s ease; font-size: 1.25rem; font-family: 'Inter', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji', sans-serif; }
        .lang-switcher-btn:hover { background-color: #f1f5f9; }
        .lang-switcher-btn span { font-size: 0.875rem; font-weight: 500; color: #4A5568; }